/* ============================================
   SDWANAGER — Dashboard Styles
   Amber accent · Dark theme · KIW system
   HORIZONTAL NAV layout (distinct from SVW sidebar)
   ============================================ */

/* ─── Fonts ─── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&family=Syne:wght@400;500;700&display=swap');

/* ─── Tokens ─── */
:root {
    --bg: #0A0E14;
    --bg-card: #12161D;
    --bg-elevated: #171C24;
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --fg: #E8ECF2;
    --fg-muted: #7A8394;
    --fg-subtle: #454D5C;
    --amber: #F59E0B;
    --amber-dark: #D97706;
    --orange: #F97316;
    --amber-dim: rgba(245, 158, 11, 0.08);
    --amber-glow: rgba(245, 158, 11, 0.15);
    --green: #4ADE80;
    --green-dim: rgba(74, 222, 128, 0.08);
    --red: #F87171;
    --red-dim: rgba(248, 113, 113, 0.08);
    --blue: #60A5FA;
    --blue-dim: rgba(96, 165, 250, 0.08);
    --yellow: #FBBF24;
    --yellow-dim: rgba(251, 191, 36, 0.08);
    --topnav-h: 54px;
    --font-display: 'Syne', -apple-system, sans-serif;
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ─── Reset ─── */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
    overflow: hidden;
    height: 100vh;
}

/* ═══════════════════════════
   LOGIN — SPLIT SCREEN
   ═══════════════════════════ */
.login-page {
    display: flex;
    min-height: 100vh;
}

.login-brand {
    flex: 1;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.06) 0%, transparent 60%), var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.login-brand::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 500px;
    height: 500px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.login-brand-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

.login-brand-name {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--fg);
    letter-spacing: -0.02em;
    margin-top: 1rem;
}

.login-brand-name span {
    color: var(--amber);
}

.login-brand-tagline {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--amber);
    letter-spacing: 0.2em;
}

.login-brand-desc {
    font-size: 0.9rem;
    color: var(--fg-muted);
    max-width: 300px;
    line-height: 1.6;
}

.login-brand-stats {
    display: flex;
    gap: 2rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.login-stat {
    text-align: center;
}

.login-stat-val {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--amber);
}

.login-stat-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--fg-subtle);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.2rem;
}

.login-form-side {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    background: var(--bg-card);
    border-left: 1px solid var(--border);
}

.login-card {
    width: 360px;
    text-align: center;
}

.login-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.login-sub {
    font-size: 0.8rem;
    color: var(--fg-muted);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1rem;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    color: var(--fg-muted);
    margin-bottom: 0.3rem;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.7rem 0.9rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--fg);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.3s;
}

.form-group input:focus {
    border-color: var(--amber);
}

.form-group input::placeholder {
    color: var(--fg-subtle);
}

.login-error {
    display: none;
    color: var(--red);
    font-size: 0.75rem;
    margin-bottom: 0.75rem;
    text-align: left;
}

.login-error.show {
    display: block;
}

.btn-login {
    width: 100%;
    padding: 0.75rem;
    background: var(--amber);
    color: var(--bg);
    border: none;
    border-radius: 8px;
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
    letter-spacing: 0.03em;
}

.btn-login:hover {
    background: var(--amber-dark);
    transform: translateY(-1px);
}

.login-footer {
    margin-top: 2rem;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--fg-subtle);
    letter-spacing: 0.03em;
}

/* ═══════════════════════════
   APP SHELL — HORIZONTAL NAV
   ═══════════════════════════ */
.app-shell {
    display: none;
    height: 100vh;
    flex-direction: column;
}

.app-shell.active {
    display: flex;
}

/* ─── Top Navbar ─── */
.topnav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--topnav-h);
    padding: 0 1.25rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    z-index: 10;
}

.topnav-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.topnav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
}

.topnav-logo-text {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--fg);
    letter-spacing: 0.02em;
}

.topnav-logo-text span {
    color: var(--amber);
}

.topnav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.topnav-links .nav-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.7rem;
    border-radius: 6px;
    color: var(--fg-muted);
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.25s;
    cursor: pointer;
    white-space: nowrap;
}

.topnav-links .nav-item i {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.topnav-links .nav-item:hover {
    background: rgba(255, 255, 255, 0.03);
    color: var(--fg);
}

.topnav-links .nav-item.active {
    background: var(--amber-dim);
    color: var(--amber);
}

.topnav-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.topnav-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.topnav-avatar {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: var(--amber-dim);
    color: var(--amber);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
}

/* ─── Search & Buttons (reused from before) ─── */
.topbar-search {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    max-width: 220px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.3rem 0.7rem;
}

.topbar-search i {
    width: 14px;
    height: 14px;
    color: var(--fg-subtle);
    flex-shrink: 0;
}

.topbar-search input {
    background: none;
    border: none;
    color: var(--fg);
    font-size: 0.8rem;
    width: 100%;
    outline: none;
    font-family: var(--font-sans);
}

.topbar-search input::placeholder {
    color: var(--fg-subtle);
}

.lang-toggle {
    display: flex;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--fg-subtle);
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 700;
    padding: 0.3rem 0.5rem;
    cursor: pointer;
    transition: all 0.25s;
    letter-spacing: 0.05em;
}

.lang-btn.active {
    background: var(--amber);
    color: var(--bg);
}

.lang-btn:hover:not(.active) {
    color: var(--fg);
}

.topbar-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--fg-muted);
    padding: 0.35rem;
    cursor: pointer;
    transition: all 0.25s;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.topbar-btn:hover {
    border-color: var(--border-hover);
    color: var(--fg);
}

.topbar-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--amber);
    color: var(--bg);
    font-family: var(--font-mono);
    font-size: 0.5rem;
    font-weight: 700;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 3px;
}

.topbar-badge:empty,
.topbar-badge[data-count="0"] {
    display: none;
}

.btn-logout {
    display: flex;
    align-items: center;
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--fg-muted);
    padding: 0.3rem 0.4rem;
    cursor: pointer;
    transition: all 0.25s;
    font-family: var(--font-sans);
}

.btn-logout:hover {
    border-color: var(--red);
    color: var(--red);
}

/* ─── Main Content ─── */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.page-header {
    padding: 1rem 1.5rem 0;
    flex-shrink: 0;
}

.topbar-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
}

.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 1.5rem 1.5rem;
}

/* ═══════════════════════════
   VIEW COMPONENTS
   ═══════════════════════════ */

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.kpi-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 0 24px var(--amber-dim);
}

.kpi-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.kpi-label i {
    width: 14px;
    height: 14px;
    color: var(--amber);
}

.kpi-value {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--fg);
    line-height: 1;
}

.kpi-value.amber {
    color: var(--amber);
}

.kpi-value.green {
    color: var(--green);
}

.kpi-change {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    margin-top: 0.3rem;
}

.kpi-change.up {
    color: var(--green);
}

.kpi-change.down {
    color: var(--red);
}

/* Data Cards (controllers, tunnels) */
.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.data-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    cursor: pointer;
    transition: all 0.3s var(--ease);
}

.data-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.data-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.data-card-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
}

.data-card-status {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-dot.online {
    background: var(--green);
    box-shadow: 0 0 8px var(--green-dim);
}

.status-dot.warning {
    background: var(--yellow);
    box-shadow: 0 0 8px var(--yellow-dim);
}

.status-dot.offline {
    background: var(--red);
    box-shadow: 0 0 8px var(--red-dim);
}

.data-card-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.meta-label {
    font-family: var(--font-mono);
    font-size: 0.55rem;
    color: var(--fg-subtle);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.meta-value {
    font-size: 0.8rem;
    font-weight: 600;
}

/* Table */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}

.table-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
}

.table-count {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--fg-subtle);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--fg-subtle);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    text-align: left;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
}

td {
    font-size: 0.8rem;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--fg-muted);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

td .status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td .status-pill.up {
    background: var(--green-dim);
    color: var(--green);
}

td .status-pill.down {
    background: var(--red-dim);
    color: var(--red);
}

td .status-pill.warn {
    background: var(--yellow-dim);
    color: var(--yellow);
}

td.mono {
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

/* Chart containers */
.chart-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
}

.chart-card.full {
    grid-column: 1 / -1;
}

.chart-card h3 {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.chart-wrap {
    position: relative;
    height: 200px;
}

.chart-card.full .chart-wrap {
    height: 240px;
}

/* Section headers */
.view-section {
    margin-bottom: 1.5rem;
}

.view-section-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

/* Alerts list */
.alert-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.alert-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: border-color 0.25s;
    cursor: pointer;
}

.alert-item:hover {
    border-color: var(--border-hover);
}

.alert-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.alert-icon.critical {
    background: var(--red-dim);
    color: var(--red);
}

.alert-icon.warning {
    background: var(--yellow-dim);
    color: var(--yellow);
}

.alert-icon.info {
    background: var(--blue-dim);
    color: var(--blue);
}

.alert-text {
    flex: 1;
}

.alert-text h4 {
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.1rem;
}

.alert-text p {
    font-size: 0.7rem;
    color: var(--fg-muted);
}

.alert-time {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--fg-subtle);
    flex-shrink: 0;
}

/* Settings */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.settings-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.settings-card h3 {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.settings-card h3 i {
    width: 16px;
    height: 16px;
    color: var(--amber);
}

.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
}

.settings-row:last-child {
    border-bottom: none;
}

.settings-label {
    font-size: 0.8rem;
    color: var(--fg-muted);
}

.settings-value {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--amber);
}

.toggle {
    width: 36px;
    height: 20px;
    border-radius: 10px;
    background: var(--fg-subtle);
    position: relative;
    cursor: pointer;
    transition: background 0.3s;
}

.toggle.on {
    background: var(--amber);
}

.toggle::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #FFF;
    top: 2px;
    left: 2px;
    transition: transform 0.3s;
}

.toggle.on::after {
    transform: translateX(16px);
}

/* ─── Modal ─── */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 90%;
    max-width: 560px;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--fg-muted);
    cursor: pointer;
    padding: 0.25rem;
}

.modal-close:hover {
    color: var(--fg);
}

.modal-body {
    padding: 1.5rem;
}

.modal-body .detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.modal-body .detail-label {
    font-family: var(--font-mono);
    font-size: 0.55rem;
    color: var(--fg-subtle);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.2rem;
}

.modal-body .detail-value {
    font-size: 0.85rem;
    font-weight: 600;
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
    .topnav-links .nav-item span {
        display: none;
    }

    .topnav-links .nav-item {
        padding: 0.4rem;
    }

    .topbar-search {
        display: none;
    }

    .login-page {
        flex-direction: column;
    }

    .login-brand {
        display: none;
    }

    .login-form-side {
        border-left: none;
    }

    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .chart-grid {
        grid-template-columns: 1fr;
    }

    .settings-grid {
        grid-template-columns: 1fr;
    }
}